package com.itheima.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.common.R;
import com.itheima.entity.Employee;
import com.itheima.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.naming.Name;
import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     *
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {

        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());//将密码进行md5加密处理

        //查询数据库有没有这个用户名
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);//获得的查询对象

        //如过查询不到数据
        if (null == emp) {
            return R.error("登录失败");
        }
        //如果有数据则对比密码是否正确
        if (!emp.getPassword().equals(password)) {
            return R.error("密码错误");
        }
        //查看员工状态
        if (emp.getStatus() == 0) {
            return R.error("账户以禁用");
        }
        //登陆成功将员工id存入session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);


    }

    /**
     * 退出员工登录
     *
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        request.getSession().removeAttribute("employee");//清除session
        return R.success("退出成功");
    }

    /**
     * 员工新增
     *
     * @param request
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee) {
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));//设置初始密码并加密
        //以下下做成自动填充的
//        //设置创建时间和更新时间
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//        //设置创建人和最后更新人
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        employeeService.save(employee);
        return R.success("新增员工成功");
    }

    /**
     * 员工分页查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        log.info("page:{},pagesize:{},name:{}", page, pageSize, name);
        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name), Employee::getName, name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo, queryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 修改员工数据
     *
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request, @RequestBody Employee employee) {
        //以下下做成自动填充的
//        employee.setUpdateTime(LocalDateTime.now());//添加修改时间
//        Long id = (Long) request.getSession().getAttribute("employee");//添加修改人id
//        employee.setUpdateUser(id);
        employeeService.updateById(employee);
        return R.success("修改成功");

    }

    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id) {
        log.info("根据id查询员工信息");
        Employee employee = employeeService.getById(id);
        if (employee != null) {
            return R.success(employee);
        }
        return R.error("没有查询到对应员工信息");
    }
}
